50 câu bài tập bị động (Passive Voice), có đáp án và chú thích
1/ Tom delivers the mail every day
 ---> the mail is delivered every day by Tom
2/ Fire destroyed that house
----> that house was destroyed by fire
3/ Bob took that book from the desk
----> that book was taken from the desk by Bob
4/ Barbara will eat the cake
----> the cake will be eaten by Barbara
5/ Beth has finished the report
----> the report has been finished by Beth
6/ The police easily captured the thief
----> the thief was easily captured by the police
7/ The students attended the lecture
----> the lecture was attended by the students
8/ The movie disappointed us very much
---> we were disappointed very much by the movie
9/ Mr. John manages the export division
----> the export division is managed by Mr.John
10/ John returned the money last night
---> the money was returned last night by John
11/ The teacher corrects our exercises
---> our exercises are corrected by the teacher
12/ They started a dancing class last week
---> a dancing class was started last week by them
13/ Mr. Smith saw the accident
---> the accident was seen by Mr.Smith
14/ Somebody has taken my briefcase
---> my briefcase has been taken
15/ The teacher returned our written work to us
---> our written work was returned to us by the teacher
16/ She has finished the report by noon
---> the report has been finished by noon by her
17/ The mad dog bit the little boy
---> the little boy was bitten by the mad dog
18/ The police have arrested five suspects
----> five suspects have been arrested by the police
19/ The doctor ordered him to take a long rest
----> he was ordered to take a long rest by the doctor
20/ Lightning struck the house
---> the house was struck by lightning
21/  They can’t make tea with cold water
--> Tea can`t be made with cold water by them

22/  The chef engineer was instructing all the workers of the plant
--> all the workers of the plant were being instructed by the chef engineer
 
23/  Some body has taken some of my books away
--> some of my books have been taken away
 
24/  They will hold the meeting before May Day
--> the meeting will be held by them before May day

25/  They have to repair the engine of the car
--> the engine of the car has to be repaired by them

26/  The boys broke the window and took away some pictures
--> the window was broken and some pictures were taken away by the boys
 
27/  People spend a lot of money on advertising everyday
--> a lot of money is spent on advertising (by the people) everyday

/  They may use this room for the classroom
--> this room may be used for the classroom by them

29/  The teacher is going to tell a story
--> a story is going to be told by the teacher

30/  Mary is cutting the cake with a sharp knife
--> the cake is being cut with a sharp knife by Mary

31/  The children looked at the women with a red hat
--> the women with a red was looked hat by the children
 
32/  They have provided the victims with food and clothing
--> the victims have been provided with food and clothing (by them)

33/  People speak English in almost every corner of the world
--> english is spoken in almost every corner of the world by the people

34/  You mustn’t use this machine after 5: 30 p.m
--> this machine mustn`t be used by you after 5:30 p.m
  
35/  Luckily for me, they didn’t call my name
--> luckily for me, my name wasn`t called by them

36/  After class, one of the students always erases the chalkboard
--> after class, the chalkboard is always erased by one of the students

37/  You must clean the wall before you paint it
--> the wall must be cleaned before you paint it

+) Hoặc bị động cả thì “The wall must be cleaned before it is painted”.
 
38/  They told the new pupil where to sit
--> the new pupil was told where to sit by them

39/  I know that they had told him of the meeting
--> I know that he had been told of the meeting by them
 
40/  Nobody has ever treated me with such kindness
-->I have been ever treated with such kindness

41/  No one believes his story
-->His story is believed by no one.
42/  A sudden increase in water pressure may break the dam
--->.The dam may be broken by a sudden increase in water.

43/  We